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Finding the Fourth Proportional to 1,615.24, 2,230.02 and 995.08

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Solution

The fourth proportional to 1,615.24, 2,230.02 and 995.08 is: 1,373.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615.24 : 2,230.02 = 995.08 : x
  2. Step 2: Convert to fraction form
    1,615.24/2,230.02 = 995.08/x
  3. Step 3: Cross multiply
    1,615.24x = 2,230.02 × 995.08
  4. Step 4: Simplify right side
    1,615.24x = 2,219,048.30
  5. Step 5: Solve for x
    x = 2,219,048.30/1,615.24
  6. Step 6: Final answer
    x = 1,373.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.